h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

I have read several theories on how galaxies are formed. They do not make sense to me.
The following is my theory, but it looks so obvious it has probably already been studied.
Has the method of galaxy formation been proved?
Does my theory make sense?

The huge gravity of a rapidly spinning black hole sucks in rocky debris from space into both sides of the black hole along the axis of rotation. After this debris spirals in and penetrates the surface of the black hole, it continues to spiral towards the center, in a super hot, super fluid medium. The tremendous gravity increases the speed of the debris exponentially. At a critical point, this material approaches the speed of light and escapes the mass of the black hole; it spirals away in a direction at right angle to the axis of rotation. This is a constant process, whereby a galaxy is being fed at the center, and spirals outward as gravity is reduced by distance.

If in fact matter cannot exceed the speed of light, maybe black holes do not quite capture light. The centers of galaxies I have seen in photos have been brightly lighted demonstrating extreme activity. To go from the ridiculous to the sublime; the universe we can see is in an arm of a much larger galaxy created by a much larger black hole whose sound we misinterpret as the big bang. This could explain the stringing out of galaxies and intermittent voids we see in the sky.
I am a retired architect. My above theory is from a sifi novel I am writing.